Ok so I just got a killer 9 and was told it had 2 gallons through it, got it in the mail and felt great all the way through. Put it in my truggy and started running it leaned it out a little to much and got the temp to 270 shut it down right away and let it cool off. Now she has no pinch, is this typical of this engine or a fluke? I am thinking of sending it in to rb mods and have it modded anyone have any experience with them?